.TH MPI_Wtick 3 "6/7/2023" " " "MPI"
.SH NAME
MPI_Wtick \-  Returns the resolution of MPI_Wtime 
.SH SYNOPSIS
.nf
.fi
.nf
double MPI_Wtick(void)
.fi


.SH RETURN VALUE
Time in seconds since an arbitrary time in the past.

.SH NOTES
This is intended to be a high-resolution, elapsed (or wall) clock.
See 
.I MPI_WTICK
to determine the resolution of 
.I MPI_WTIME
\&.

If the attribute 
.I MPI_WTIME_IS_GLOBAL
is defined and true, then the
value is synchronized across all processes in 
.I MPI_COMM_WORLD
\&.


.SH NOTES FOR FORTRAN
This is a function, declared as 
.I DOUBLE PRECISION MPI_WTIME()
in Fortran.

.SH SEE ALSO
MPI_Wtick, MPI_Comm_get_attr, MPI_Attr_get
.br
